Steam-generator or water-heater.



No. 709,042. Patented Sept. l6, |902,.

C. M. RAYMOND.

STEAM GENERATOR UR WATER HEATER.

(Application filed Mar. 17, 1902.)

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No. 709,042; Patented s ept. l6, |9o2.

c. m. RAYMOND. STEAM GENERATOR 0B WATER HEATER. V (Apiilication meamr.1'1,- 1902.) I No Modei.) v 2 Sheets$hgat 2-.

masgtg UNITED STATES PATENT OFFICE.

CHARLES M. RAYMOND, OE CLEVELAND, OHIO, ASSIGNOR OF ONE-HALF TO LOUIS E.IIOFFMAN, OF CLEVELAND, OIIIO.

STEAM -e EN ER A ToR OR -WA'lfER-H EATER.

fiPEGIFICATlION forming part of 'Letters'PatentNo. 709,042, datedSeptember 16, 1902.

Application filed March 17, 1902| $erial No. 98,587. \No model.)

To all whom it may concern.-

Be it known that I, CHARLES M; RAYMOND,- a citizen of the United Statesof America, residing at Oleveland,in the county of Ouyahoga and State ofOhio, have invented certain new and useful Improvements in SteamGenerators or Water-Heaters; and I hereby declare the following to be afull, clear, and exact description of the invention, such as will enableto others skilled in the art to which it pertains to make and use thesame.

This invention relates to improvements in steam-generators orWater-heaters, and pertains more especially to fluid-circulating pipesystems for boilers, heaters,vapor-generators, and the like, comprisinga plurality ofpairs of helical pipe-sections made, preferably, of tubingand arranged, respectively, in a horizontal or approximately horizontalplane and a short distance apart vertically, with the outermost coils ofthe two sections of eachpa'ir of helical sections joined together and inopen relation with each other, with the in nermost coils of the helicalsections having, re- 2 5 spectively, an extension projecting upwardly toand above the uppermost helical section, with the upward extension ofthe inner. coil of the lower section of each pair of helical sectionsforming the inlet of the said pair of sections, with the upwardextension of the innermost coil of the upper section of each pair ofhelical sections constituting the outlet of the said pair of sections,with the inletforming upward extension of the innermost coil of thelower section of the uppermost pair of helical sections connected andinopen relation with the fluid-supply pipe, and with the inlet-formingupward extension of the innermost coil of the lower section of eachremaining pair of helical sections connected and in open relation withthe outlet-forming upward extension of the innermost coil of the uppersection of the pair of helical sections next above, and with theoutlet-forming ex- 5 tension of the upper section of the lowermost pairof helical sections connecting and in open relation with the pipeemployed to conduct the fluid from the pipe system..

The object of this invention is to join the outer ends of the sectionsof each pair of helical pipesections. as great a distance as tions topass to the said pair of sections from a point above the uppermosthelical section, and to render each pipe connection which joins theinlet-forming end of a pair of sections with the outlet-forming end ofanother pair of sections readily and conveniently accessible for repairsand cleaning.

Another object is to advantageously utilize the opening formed centrallyof the helical pipe-sections and extending from the top of the uppermosthelical pipe-section to the bottom of the lowermost helicalpipe-section.

With these objects in view the invention consists in certain features ofconstruction and combinations of parts, hereinafter described, andpointed out in the claims.

In the accompanying drawings, Figure I is a top plan, part-1y insection, of a fluid-circulating pipe system embodying my invention. Fig.II is a side elevation of the same. Fig. III is an elevation, partly insection, on line III III, Fig-I, of a portion of the pipe system lookingin the direction indicated by the arrow. Fig. IV is an elevation, partlyin section, on line IV IV, Fig. I, of a portion 8 5 of the pipe systemlooking in the direction indicated by the arrow.

The illustrated pipe system comprises six pairs of helical pipe-sectionscomposed, preferably, of tubing and has the said sections 0 arranged,respectively, in a horizontal or approximately horizontal plane and ashort distance apart vertically.

a and ct designate the .upper section and lower section, respectively,of the first or 5 uppermost pair of helical pipe-sections l) and b, theupper section and lower section, re spectively, of the secondornext-uppermost pair of helical pipe-sections; c and c, and d and d,the sections, respectively, of the two row central or third or fourthpairs of helical pipe-sections; e and c, the upper section and lowersection, respectively, of the fifth or second-lowermost pair of helicalpipe-sections, and f and f the upper section and lower section,respectively, of the sixth or lowermost helical pipe-section. The twosections of each pair of helical pipe-sections are arranged one abovethe other and are preferably uniform or approximately uniform indimensions and number of coils, and the outer ends g of the saidsections-that is, the outer ends of the outermost coils of the saidsectionshave the inclination required to place the said ends in line andto conveniently accommodate the application of a union h, employed incoupling or joining the said ends together, and establishing openrelation between the said sections. Obviously the space within which thetubing or pipe can be coiled is limited, and an opening at and centrallyof the innermost coil of a helical tube or pipe-section cannot beavoided, and consequently in the pipe system illustrated an opening isformed centrally of and extends from top to bottom of the pipe system,and to utilize the said opening or space It to advantage the innermostcoils of the helical pipe-sections are extended upwardly, as at Z,through the said space or opening 70 preferably-to and above theuppermost section a, and the upward extension Z of the innermost coil ofthe lower section of each pair of helical pipe-sections constitutes theinlet of the said pair of sections, whereas the upward extension Z ofthe innermost coil of the upper section of the said pair of sectionsforms the outlet of the said pair of sections.

The inlet-forming upward extension Zof the first or upper pair ofhelical pipe-sections is connected by an elbow a with the fluid-supplypipe m above the upper section of the said pair of sections, and theinletforming upward extension Z of the lowersection of each remainingpair of helical pipesections is connected by a pipe connection with theoutlet-forming upward extension Z of the upper section of the pair ofhelical pipe-sections next above. As shown, the outlet-forming upwardextension Z of the upper section a of the first or uppermost pair ofpipe-sections 0t and a is connected by a pipe connection b above theuppermost helical section a with the inlet-forming upward extension Zofthe lower section b of the second or next-uppermost pair ofpipe-sections b and b, and pipe connections 0*, 0Z 6 and f connect theoutlet-forming upward extension Z of the pipe-sections b, 0, cl, andeabove the uppermost helical section a with the inletforming upwardextension Z of the pipe-sections 0, d, e, and f, respectively, and theoutlet-forming upward extension Z of the upper section of the lowermostpair of sections f and f is connected above the uppermost section a, byan elbowf with the pipe 0, employed to conduct the fluid from the pipesystem to the engine or place where the fluid is utilized.

Obviously my improved pipe system is especially well adapted for use invapor-generators, steamboilers, and water-heaters; but the applicationof fluid-circulating pipe systems relative to the burner or furnaceemployed in heating the same and the manner of incasing the same are toowell known to require illustration and description in this application.

What I claim is- 1. A steam generator or heater of the characterindicated, comprising pairs of helical pipe-sectionsarranged,respectively, in a horizontal or approximately horizontal planeand at short intervals vertically, which pipe system has the twosections of each pair of helical sections arranged one above the otherand corresponding or approximately corresponding with each other indimensions and number of coils and communicating with each other attheir outermost coils and having their innermost coils provided,respectively, with an upward extension Zprojecting upwardly; a pipearranged to conduct fluid from the pipe system and connected andcommunicating with the innermost coil of the upper section of thelowermost pair of helical pipe-sections, a fluid-supply pipe connectedand communicating with the upward extension of the innermost coil of thelower section of the uppermost pair of helical pipe-sections, and aconnection between the upward extension of the innermost coil of thelower section of each remaining pair of helical pipe-sections and theupward extension of the innermost coil of the upper section of the pairof helical pipe-sections next above,

substantially as and for the purpose set forth.

2. A steam generator or heater of the character indicated, comprisingpairs of helical pipe-sections arranged, respectively,in ahorizontal orapproximately horizontal plane and at short intervals vertically andconstituting a partial inclosure for a space or opening 70 arrangedcentrally of and extending from top to bottom of the said pipe system,which pipe system has the two sections of each pair of helical sectionsarranged one above the other and communicating with each other at theiroutermost coils and having their innermost coils provided, respectively,with an upward extension I projecting upwardly through the aforesaidopening or space; a pipe arranged to conduct fluid from the pipe systemand connected and communicating with the innermost coil of the upwardextension of the upper section of the lowermost pair of helicalpipe-sections; a fluid-supply pipe connected and communicating with theupward extension of the innermost coil of the lower section of theuppermost pair of helical pipesections, and a connection between theupward extension of the innermost coil of the lowermost section of eachremaining pair of helical, pipe-section and the upward extension of theinnermost coil of the upper section of the pair of helical pipe-sectionsnext above, substantially as and for the purpose set forth.

3. A steam generatoror heater of the character indicated, comprisingpairs of helical pipe sections arranged, respectively, in a horizontalor approximately horizontal plane and at short intervals vertically,which pipe system has the two sections of each pair of helical sectionsarranged one above the other and communicating with each other at theiroutermost coils and having their innermost coils provided, respectively,with an upward extension I projecting upwardly to and above theuppermost helical section; a pipe arranged to conduct fluid from thepipe system at the top of the pipe system and connected andcommunicating with the upward exten sion of the innermost coil of theupper section of the lowermost pair of helical pipesections; afluid-supply pipe arranged to supply fluid to the pipe system at the topof the pipe system and connected and communicating with the upwardextension of the innermost coil of the lower section of the uppermostpair of helical pipe-sections; and a pipe connection, above theuppermost helical pipesection, between the upward extension of theinnermost coil of the lowermost section of each remaining pair ofhelical pipe-sections and the upward extension of the innermost coil ofthe upper section of the pair of helical pipe-sections next above.

4. A steam generator or heater of the character indicated, comprisingpairs of helical pipe-sections arranged, respectively,in a horizontal orapproximately horizontal plane and at short intervals vertically andconstitutin a partial inclosure for a space or opening 0 formedcentrally of and extending from top' to bottom of the said pipe system,which pipe system has the two sections of each pair of helical sectionsarranged one above the other and communicating with each other at theiroutermost coils and having their innermost coils provided, respectively,with an upward aforesaid space or opening; a pipe arranged to conductfiuidfrom the pipe system and connected and communicating with theinnermost coil of the upper section of the lowermost pair of helicalpipe-sections; a fluidsupply pipe connected and communicating with theupward extension of the innermost coil of the lower section of theuppermost pair of helical pipe-sections, and a connection between theupward extension of the inner most coil of the lowermost section of eachpair of helical pipe-sections, except the lower section of the uppermostpair of helical sec tions, and the upward extension of the innermostcoil of the upper section of the pair of helical pipe-sections nextabove.

5. A steam generator or heater of the char-- acter indicated, comprisingpairs of helical pipesections arranged, respectively,in a horizontal orapproximately plane and at short intervals vertically, which pipe systemhas the outermost coils of the two sections of each pair of helicalsections joined together by a union; a pipe arranged to conduct'fluidfrom the pipe system and connected and c'ommu nicating with theinnermost coil of the upper section of the lowermost pair of helicalpipe sections; a fluid-supply pipe connected and communicating with theinnermost coil of the lower section of the uppermost pair of helicalpipe-sections, and a connection between the.

innermost coil of the lowermost section of each pair of helicalpipe-sections, exoeptthe lower section of the uppermostpair of sections,and the innermost coil of the upper section of the pair of helicalpipe-sections next above.

In testimony whereof I'sign the foregoing specification, in the presenceof two witnesses, this 11th day of March, 1902, atCleveland, Ohio.

CHARLES M. RAYMOND.

\Vitnesses:

TELSA SoHWAR'rz, VICTOR O. LYNCH.

